Amazon says America is buying green

We can learn two things from this map, based on Amazon.com's purchasing data: One, many parts of the country are at least buying green products and books about sustainability and conservation, which is a start. Two, Amazon needs a proofreader.

There are more charts, too, breaking down who's buying books and products for water conservation, energy savings, garden-to-table, green parenting, and environmental information. Most of the charts are particularly green around the edges, but Midwestern cities star in several areas. Here are a few of the notable findings:

Most green toilets purchased: Santa Cruz, Calif.

Most disappointing number of rain barrel purchases: Seattle, Wa. All that rainwater going to waste! You might as well go to Santa Cruz and flush it.